staging: comedi: pcmuio: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change `pcmuio_handle_intr_subdev()` in the "pcmuio" module to use
unsigned sample values for consistency.

Also, make the order in which `pcmuio_handle_intr_subdev()` writes the
two sample values (each actually containing up to 16 1-bit sample
values) independent of the host byte ordering.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c
index 67e2bb1..954fa96 100644 (file)
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -315,8 +315,8 @@ static void pcmuio_handle_intr_subdev(struct comedi_device *dev,
        }
 
        /* Write the scan to the buffer. */
-       if (comedi_buf_put(s->async, ((short *)&val)[0]) &&
-           comedi_buf_put(s->async, ((short *)&val)[1])) {
+       if (comedi_buf_put(s->async, val) &&
+           comedi_buf_put(s->async, val >> 16)) {
                s->async->events |= (COMEDI_CB_BLOCK | COMEDI_CB_EOS);
        } else {
                /* Overflow! Stop acquisition!! */